21.5 Welded lithic lapilli tuff rhyolite. Near Shoshone, California. Generally brown volcanic lithic clasts (lapilli) and some crystals of quartz are embedded in an annealed ash matrix of volcanic glass, crystals, and lithic fragments.

Image 50 of 156

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21.5 Welded lithic lapilli tuff rhyolite. Near Shoshone, California. Generally brown volcanic lithic clasts (lapilli) and some crystals of quartz are embedded in an annealed ash matrix of volcanic glass, crystals, and lithic fragments.

21.5 Welded lithic lapilli tuff rhyolite. Near Shoshone, California. Generally brown volcanic lithic clasts (lapilli) and some crystals of quartz are embedded in an annealed ash matrix of volcanic glass, crystals, and lithic fragments.

Image 50 of 156

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